WHILE TRAVELING AT 45 MPH, I LOST THE ABILITY TO STEER THE VEHICLE. THIS TRUCK WAS A 4WD CONVERSION WHICH WAS DONE BY A COMPANY CALLED QUIGLEY, IN MANCHESTER, PA. THIS CONVERSION WAS APPROVED BY FORD AND THE TRUCK WAS PURCHASED WITH THE CONVERSION. AFTER THE STEERING FELL APART, I WAS UNABLE TO CONTROL TRUCK AND HAD AN ACCIDENT. APPROXIMATELY SIX MONTHS LATER, THE TRUCK, AGAIN, WENT OUT OF CONTROL AFTER HITTING A SLIGHT DIP IN THE ROAD. UPON FURTHER INVESTIGATION WITH THE DEALER, WHO CALLED QUIGLEY, QUIGLEY SAID THEY KNEW ABOUT THE PROBLEM AS IT HAD HAPPENED ON THEIR AMBULANCE 4WD CONVERSIONS. THERE WAS A KIT THEY COULD SUPPLY THAT WOULD FIX THIS PROBLEM. I PURCHASED THE KIT , WHICH WAS A STABILIZER KIT, AND HAD THE DEALER INSTALL IT AND HAVE NOT HAD A PROBLEM SINCE. I MET SOME EMT'S FROM RIDDLE MEMORIAL HOSPITAL, OUTSIDE MEDIA, PA. AND THEY WERE DRIVING A 4WD AMBULANCE CONVERSION VAN FROM FORD AND QUIGLEY. I ASKED THEM IF THEY EVER EXPERIENCED WHAT I DID AND THEY SAID THEY DID, THAT THEIR SUPERVISOR HAD TO SEND THE AMBULANCES BACK TO QUIGLEY, AND FINALLY, QUIGLEY WAS ABLE TO FIND OUT THE PROBLEM AND INSTALL A STABILIZER KIT. I HAVE SINCE MET OTHER PEOPLE WITH FORD VANS AND QUIGLEY 4WD CONVERSIONS, WHO HAVE HAD THE SAME PROBLEMS. SOMETHING SHOULD BE DONE ABOUT THIS AS I WAS LUCKY AND WASN'T KILLED, BUT IT IS A KNOWN PROBLEM WITH THE QUIGLEY CONVERSION. ITS EVEN MORE OF A DANGER WHEN AMBULANCES, FULL OF PEOPLE, GO OUT OF CONTROL BECAUSE OF THIS PROBLEM. THE LOSS OF CONTROL OF